If I recall correctly, tax for the upper bracket is now 48%. Nevertheless the number is to evolve fairly soon. There are two trends of this matter, first the number of brackets is reduced every couple of years. There is consistant trend of reducing income tax hoping to recover it through sales tax (which has greatly worked up to now). For example, there is a planned set of changes which will move the higest tax from 48 to 45 to happen fairly soon.(most probably next year).
That income should be in the lower side of the upper brackets, and it will problably fall down into medium brackets with the next bracket reduction, it may have happened even in the fiscal changes of this year. I am not an specialist, I speak only from experience.
On the other side, there is consistant trend of reducing income tax hoping to recover it through sales tax (which has greatly worked up to now). For example, there is a planned set of changes which will move the higest tax from 48 to 45 to happen fairly soon.(most probably next year).
Once you are here as a resident, you can start using the tax reduction mechanisms available when you have an easily taxable fixed rent. That is (1)buying a house with a mortgage (2)If you are under 60 open a pension fund here. Tax effect of both options are strong specially the second. You will get a tax refund tipically 3weeks after presenting your tax declaration.